Aging-in-place renovations in Hawaii can vary widely in cost depending on the specific modifications required, the size of the home, the materials used, and the general cost of labor, which tends to be higher in Hawaii compared to many other states. Here’s a general breakdown of some common aging-in-place modifications and their average costs:

1. Grab Bars

Cost: Typically between $100 and $300 per bar, including installation.
Purpose: Installed in bathrooms, along hallways, or in bedrooms to assist with mobility.

2. Walk-In Showers

Cost: Usually ranges from $1,500 to $5,000.
Purpose: Removes the need to step over a threshold, reducing the risk of falls.

3. Widened Doorways

Cost: Can cost anywhere from $500 to $2,500 per doorway, depending on structural considerations.
Purpose: Accommodates wheelchairs and walkers, enhancing mobility throughout the home.

4. Ramps

Cost: Typically ranges from $1,000 to $3,000, depending on materials and length.
Purpose: Provides easier access to homes with steps.

5. Stair Lifts

Cost: Generally between $2,000 to $15,000, depending on the length of the staircase and the model of the stair lift.
Purpose: Allows individuals to access multiple floors without using stairs.

6. Non-Slip Flooring

Cost: Varies widely, from $1,000 to $10,000, depending largely on the size of the area and the materials chosen.
Purpose: Reduces the risk of slips and falls, especially in high-moisture areas like kitchens and bathrooms.

7. Height-Adjustable Countertops

Cost: Usually starting at $2,000 and can go much higher based on materials and mechanisms.
Purpose: Facilitates kitchen use for individuals who are seated or have limited reach.

8. Pull-Out and Pull-Down Shelving

Cost: Typically starts around $500 and increases with the complexity and quality of the systems.
Purpose: Makes kitchen storage more accessible.

These are just average estimates and the actual costs can vary. It’s also important to consider that in Hawaii, geographic isolation can lead to higher prices for materials and sometimes limited availability of specialized contractors, which might add to the overall costs. Getting multiple quotes from contractors experienced in aging-in-place renovations is recommended to get a more accurate estimate for specific projects.